Oka Arjasa | Nanotechnology | Best Researcher Award

Assoc. Prof. Dr. Oka Arjasa | Nanotechnology | Best Researcher Award

BRIN | Indonesia

Assoc. Prof. Oka Pradipta Arjasa, Ph.D. is a leading researcher and Principal Investigator in Colloid and Nanoscience at the Fuel Cells System and Hydrogen Production Research Group, Energy Conversion and Conservation Research Centre (PR KKE), BRIN, Indonesia. With a strong focus on hydrogen technology and sustainable energy solutions, he has been instrumental in developing cutting-edge research and national policy frameworks for energy transition. Dr. Arjasa holds a Ph.D. in Chemistry from the University of Manchester, UK, where he specialized in the magnetic properties of graphene using Electron Spin Resonance. He also earned a Master of Engineering from the University of Indonesia, a Master of Science from National Taiwan University of Science and Technology, and a Bachelor’s degree in Chemical Engineering from Universitas Gadjah Mada. His professional journey includes over a decade of research at the Center for Material Technology (BPPT) and ongoing contributions to national and ASEAN-level scientific initiatives. He currently serves as a Technical Committee member for Indonesia’s Hydrogen Technology Standard (TC 27-11) and as the ASEAN COSTI focal point for Sustainable Energy Research. In Scopus, he has published 15 documents with 28 citations and an h-index of 3. Google Scholar reports 530 citations with an h-index of 10, reflecting his growing impact in sustainable energy research. In addition to his research, Dr. Arjasa is Vice President of Power Resilience at HAGI, a reviewer for international journals, and a dedicated member of multiple scientific consortia. His work in battery recycling, rare earth materials, and hydrogen fuel development reflects his commitment to advancing clean energy technologies in Indonesia and beyond.

Profiles : Scopus | Orcid | Google scholar 

Featured Publications

Bhagaskara, A., Wijaya, K., Trisunaryanti, W., Saputra, D. A., Agustanhakri, A., Taqwatomo, G., Arjasa, O. P., Budiman, A. H., & Anggaravidya, M. (2025, October). Upcycling secondary nickel from spent nickel-manganese-cobalt (NMC) batteries as a nanocatalyst on sulfated natural zeolite for converting LDPE plastic waste into jet-fuel hydrocarbons. Next Materials.

Hastuti, L. P., Budiman, A. H., Arjasa, O. P., Ristiana, D. D., Gumelar, M. D., Saputra, D. A., Rahayu, S., Husin, S., & Prasetyo, H. (2025, June 18). Synergistic NiS/CuO heterostructures as two-in-one catalysts for dye removal and bacterial inactivation. International Journal of Environmental Analytical Chemistry.

Hastuti, L. P., Budiman, A. H., Darsono, N., Timuda, G. E., Bakri, A., Darmawan, A., & Arjasa, O. P. (2025, May 4). Novel g-C₃N₄/rGO/NiS incorporated into GO free-standing membrane as a photocatalytic membrane for excellent dye photodegradation. Fullerenes, Nanotubes and Carbon Nanostructures.

Simamora, R. M. A., Setyadi, J. P., Pravitasari, R. D., Arjasa, O. P., Damisih, D., Hapsari, A. U., Raharjo, J., Indayaningsih, N., Subhan, A., Budiman, A. H., et al. (2025, January 13). Pt nanowire arrays on graphene-integrated cathode gas diffusion layer for proton exchange membrane fuel cells. ACS Applied Energy Materials.

Husin, S., Saudi, A. U., Taqwatomo, G., Gumelar, M. D., Raharjo, J., Rahayu, S., Prasetyo, H., Yuliani, H., Saputra, D. A., Arjasa, O. P., et al. (2024). Recovery of valuable metals from NMC-811 Li-ion battery waste with froth flotation and hydrometallurgical extraction. Engineering and Applied Science Research.

 

Zhongchuang Liu | Environmental Chemistry | Chemical Environmental Award

Dr. Zhongchuang Liu | Environmental Chemistry | Chemical Environmental Award

Chongqing Electric Power College, China

👨‍🎓Profiles

🎓 Academic Background

Dr. Zhongchuang Liu is a distinguished environmental scientist specializing in ecological restoration, environmental quality assessment, and biological resource utilization. He holds a Ph.D. in Environmental Science and Engineering and is currently based at the Department of Environmental Engineering Technology, College of Power Engineering, Chongqing Electric Power College, China. His research focuses on developing sustainable solutions for environmental remediation and resource management, contributing to cleaner ecosystems and improved environmental policies.

🌱 Research Areas and Expertise

Dr. Liu’s expertise encompasses several critical areas in environmental science. His work in ecological restoration involves the phytoremediation of heavy metal-contaminated soil and polluted water bodies, utilizing plants to naturally cleanse ecosystems. His research in environmental quality assessment includes regional water and soil monitoring, investigating soil microenvironment changes, and assessing the ecological impact and risks of environmental pollutants. Additionally, his studies in biological resource utilization focus on the preparation and application of plant biomass charcoal and the sustainable disposal of vegetable and fruit waste, promoting a circular economy and reducing environmental pollution.

🎤 Conference Leadership and Contributions

Dr. Liu plays a key role in the international scientific community by leading discussions on environmental remediation and waste management. As the Chair of the International Symposium on Environmental Remediation and Sustainable Development (ERSD 2023), he guided expert discussions on innovative strategies for environmental sustainability. He has also served on the committee for the 6th International Conference on Recycling and Waste Management (2023), contributing his expertise in sustainable waste treatment and recycling technologies. His leadership in these conferences has facilitated the exchange of knowledge and advancements in environmental protection.

📝 Editorial Roles in Scientific Journals

In addition to his research contributions, Dr. Liu holds significant editorial positions in scientific publishing, ensuring the dissemination of high-quality research in environmental science. He serves as an Editorial Board Member for Plos One, a Lead Guest Editor for Environmental Science and Pollution Research, a Primary Guest Editor for JoVE – Journal of Visualized Experiments, and a Section Editor for Special Issues in Letters in Organic Chemistry. Through his editorial work, he supports the publication of innovative research in ecological restoration, pollution control, and sustainable development, fostering scientific progress in these fields.

🌍 Impact and Future Contributions

Dr. Liu’s research has a profound impact on environmental sustainability, bridging scientific innovation with practical solutions for ecosystem restoration and resource management. His work has contributed to the development of effective phytoremediation techniques, improved ecological risk assessment methodologies, and promoted sustainable waste management strategies. Looking ahead, he aims to enhance the efficiency of phytoremediation technologies, develop advanced environmental monitoring systems, and promote sustainable practices in waste management to further contribute to global environmental conservation efforts.

📖Notable Publications

Co-hydrothermal carbonization of styrofoam and sawdust: fuel properties evaluation and effect of water recirculation on hydrochar properties

Authors: N. Sultana, Nasrin; M. Atikul Islam, Md; Z.C. Liu, Zhong Chuang; B.H. Hameed, Bassim H.; M.A. Islam, Md Azharul

Journal: Biomass Conversion and Biorefinery

Year: 2025

Role of metal and non-metal dopants in modulating g-C3N4 for photocatalytic applications

Authors: R. Muhammad, Rizwan; A. Zada, Amir; S. Azizi, Shohreh; Z.C. Liu, Zhong Chuang; M.H. Eisa, M. H.

Journal: International Journal of Hydrogen Energy

Year: 2025

Control strategies for microplastic pollution in groundwater

Authors: Z.C. Liu, Zhong Chuang; A.U.R. Bacha, Aziz Ur Rahim; L. Yang, Lei

Journal: Environmental Pollution

Year: 2023